From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <junkio@cox.net>
Subject: Re: [PATCH] Allow updating the index from a pipe
Date: Fri, 09 Dec 2005 23:06:37 -0800
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To: Daniel Barkalow <barkalow@iabervon.org>
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Daniel Barkalow <barkalow@iabervon.org> writes:

> In order to allow the index to be modified in simple ways without
> having a working tree, this adds an option to git-update-index which
> updates a single path with a mode of 100644 and reads the content from
> stdin.

I wonder ...

Could you do this with existing hash-object with update-index
--cache-info (or --index-info) please?  If you do not want a
temporary file and prefer piping contents into a command,
extending hash-object would be preferable.